Honda-SOHC

Other Stuff => Misc / Open => Topic started by: royhall on April 17, 2021, 05:55:19 PM

Title: Senior moment of the week.
Post by: royhall on April 17, 2021, 05:55:19 PM: I am just rebuilding the top end of my GS1000 after refurbing the parts. I arrived at the bit I hate namely refitting the valves. Anyone who has done a Honda head will know the retaining collets can be quite tricky to locate on the valve, well a bucket and shim head is even harder as there is no room at all for fingers. Anyway, after about and hour and a half of sweating and swearing I finally got the last valve done. After some Yes Yes Yes and air punching I decided to clear the bench, just to the left I noticed a small plastic bag with eight high quality Viton valve stem seals within. Yes you guessed it I had forgotten to fit the stem seals. Tomorrow I get to do the whole rotten job all over again. Old age does nothing good to a person.
Title: Re: Senior moment of the week.
Post by: Laverda Dave on April 17, 2021, 07:07:32 PM: I feel your pain Roy. I've just ground and refitted the same type of valve arrangement to the Z400J. The collets and valves caps are so small it was nigh on impossible to get my fingers in the space to fit the collets once the spring compressor was in there. To make it worse the valve caps were angled making the compressor slip. I made sure my head was out of the way when it came to fitting the collets (with a magnet and small screwdriver in the end).
Title: Re: Senior moment of the week.
Post by: royhall on April 17, 2021, 07:25:54 PM: I ended up putting a tiny dab of grease on the collet then sticking it to the valve with a magnetic screwdriver. A little trick I shall be using again tomorrow.
Title: Re: Senior moment of the week.
Post by: philward on April 17, 2021, 08:40:59 PM: Quote from: royhall on April 17, 2021, 07:25:54 PM
I ended up putting a tiny dab of grease on the collet then sticking it to the valve with a magnetic screwdriver. A little trick I shall be using again tomorrow.

Thats the same trick as I use Roy
Title: Re: Senior moment of the week.
Post by: Johnwebley on April 17, 2021, 08:48:40 PM: Turn them into 2 strokes

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Title: Re: Senior moment of the week.
Post by: mike the bike on April 17, 2021, 09:02:39 PM: I used to have a special Suzuki tool to depress the bucket to whip the shims out. It made the job 10 times easier.
Title: Re: Senior moment of the week.
Post by: royhall on April 17, 2021, 09:08:54 PM: Unfortunately it won't help this job Mike as the valve collets are under the buckets.
Title: Re: Senior moment of the week.
Post by: mike the bike on April 18, 2021, 06:08:09 PM: I know but it does make swapping shims easier.
Wasn't there an engine where the shims are under the buckets instead of on top? That must be a nightmare to work on.
Title: Re: Senior moment of the week.
Post by: royhall on April 18, 2021, 06:45:28 PM: Yes there is. It's the preferred modification on Suzuki powered drag bikes that for some reason people have adopted for the road. Your right about the special tool it's a doddle to change shims with that.
Title: Re: Senior moment of the week.
Post by: Bryanj on April 18, 2021, 06:56:08 PM: Some Kawasakis have the shims under, you need to do a CBX, evenwith a tool is a royal pia
Title: Re: Senior moment of the week.
Post by: royhall on April 18, 2021, 07:09:43 PM: Not to mention the cost of the shims at a tenner a go.
Title: Re: Senior moment of the week.
Post by: Seabeowner on April 18, 2021, 07:14:10 PM: Quote from: Bryanj on April 18, 2021, 06:56:08 PM
Some Kawasakis have the shims under, you need to do a CBX, evenwith a tool is a royal pia
Z650 among others. Had to remove cams I think. But only needed to do it once in 4 years.
Title: Re: Senior moment of the week.
Post by: Bryanj on April 18, 2021, 07:23:55 PM: As to the original senior moment, how about fitting a 750 morgo kit to a Triumph T110(pre unit) turning round and finding 2 gudgeon pin circlips on top of the gatepost with no idea if they are new or used!!
Title: Re: Senior moment of the week.
Post by: Johnwebley on April 18, 2021, 07:37:13 PM: When I used to race, I built an IMP motor, that had shims under the bucket.

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Title: Re: Senior moment of the week.
Post by: McCabe-Thiele (Ted) on April 18, 2021, 09:12:23 PM: It's a long time ago but I had done an engine rebuild on my 1275 Mini Cooper, engine back in, hardy spicer drive shafts connected, oil cooler & brake servo fitted carbs & exhuast back on finished at about 2.00am on a Sat night ready to fire up the next day when distributor fitted & brakes bled. Went to bed then next morning the doubts crept in - I could not remember torquing up the big ends and tapping over the steel lock tabs.

Engine out, bell housing off, gearbox off - tabs had not been knocked back but I had tightened the big ends - worked all day to get it running again by midnight. After that I developed a tick box routine to check stuff as I went through big stages like fitting the gearbox & bell housing.

I empathise with you completely we have all done similar things it's part of being human.
Title: Re: Senior moment of the week.
Post by: royhall on April 18, 2021, 09:35:06 PM: I am pleased to report that the stem seals are now fitted. It seemed way easier the second time around. I won't be doing that again.
Title: Re: Senior moment of the week.
Post by: MCTID on April 18, 2021, 11:41:06 PM: Not quite the same but certainly in the same league....Manchester Belle Vue Street TA Centre to Manorbier Artillery Range, Wales. 200+ miles on A and B roads.....over 5 hours in a noisy, bouncing, slow Land Rover.

Setting up the kit to test and Fire the Missiles on the Range only to discover a critical cable wasn't there !

Cue young Gunner Icely......"How do you fancy driving back to Manchester to get the missing cable" ! ^%&*%^&*$ hell says young Gunner Icely ! Later that day he returned cable in hand to save the day !

Some years later he was serving in Iraq and was shifting sh1te from an Army Camp to a rubbish tip.....he stopped an Army Convoy going the other way and said "I can't put my finger on it, but something isn't quite right about the stretch of road your Convoy is entering" ! The Officer in charge was a bit pissed off, but sent a Team forward to check it out......and they found the biggest EOD ever encountered to date hidden by the roadside, just waiting for their convoy !

Gunner Icely was 'Mentioned in dispatches' for his diligence that day. He was one of the daftest, scruffiest, most annoying Lads I ever met in my 15 years in the TA, but he saved a lorra lorra lives that day.
Title: Re: Senior moment of the week.
Post by: SumpMagnet on April 19, 2021, 03:33:03 PM: N-Icely done